Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I need to convert WMA metadata into MP3 ID3 tags. FFmpeg should be able to dump them into a file and load them back to another using implemented mappers. I cannot find syntax of usage though:

http://ffmpeg.org/ffmpeg.html#Metadata

I cannot convert files using FFmpeg directly because it fails on 1% of them, which is critical for thousands of files. Some errors:

ff asf bad header 0  at:264993
[asf @ 0046DA60] ff asf skip 2252 (unknown stream)
[asf @ 0046DA60] ff asf bad header 0  at:267254
[mp3 @ 0003DA60] max_analyze_duration 5000000 reached at 5015510
Truncating packet of size 1024 to 563
[mp3 @ 0171b0c0] Header missing
get_buffer() failed
Error while decoding stream #0:0

I could convert them using Mplayer to WAV and then from WAV to MP3 using LAME, but losing metadata in the process.

I have not decided about workaround yet but I will not use mplayer and stay with ffmpeg. I analyzed/displayed wave of the files in audacity and it seems that I deal with 3 kind of errors:

  1. get_buffer() failed Error while decoding stream #0:0 [98% of bugs]:
    • seems to be caused by "truncated fade out" file ending or some missing frame
    • it's not listenable and mp3 file seems to be ok
  2. ff asf skip, bad header, truncating, .. [2% of bugs only]:
    • the file is broken in some way, not always listenable
    • just few of them contain a micro gap of cracking noise
  3. max_analyze_duration reached, Header missing [warnings only]:
    • very rare, maybe caused by wrongly ended or large header (with photo included etc.)
    • result file is fine to listen

The mplayer uses the ffmpeg and seems that it just ignores the bugs. I will probably ignore the get_buffer() error while keeping failed the other ones.

share|improve this question
    
Which operating system? What is the exact FFmpeg command you're using? Please copy the complete console output. –  slhck Jan 12 '12 at 12:18
    
Please, don't focus on the errors listed. I need to know command line sample for: FFmpeg is able to dump metadata from media files into a simple UTF-8-encoded INI-like text file and then load it back using the metadata muxer/demuxer. fyi: Windows 7 x64: ffmpeg-git-1d0ae92-win32-shared ffmpeg-git-1d0ae92-win64-shared ffmpeg-git-1d0ae92-win32-static ffmpeg-git-1d0ae92-win64-static The x64 version of ffmpeg failed on some files at all: ffmpeg.exe has stopped working windows dialog... So, I cannot use ffmpeg for convert, I would like to use it just for transferring the tags (wma to id3 tags). –  Jan Suvak Jan 12 '12 at 12:45
    
I don't know the command from the top of my head, but why don't you want to fix the initial problem? :) I assume this is a recent version (~December) of FFmpeg though? –  slhck Jan 12 '12 at 12:54
    
I tried also some old version by Nov 30 2010 04:07:03... What works fine is the mplayer to wav and then lame to mp3... I don't insist on ffmpeg, I just came across: mp3tag.de/en which has command line interface, I will know more later... –  Jan Suvak Jan 12 '12 at 13:05
    
btw, mediacoderhq.com does the same: mplayer and lame. They just map metadata on their own. I can use MS .NET for the job, but I still hope that there is some freeware already tested for that... –  Jan Suvak Jan 12 '12 at 13:08

1 Answer 1

You can dump metadata with:

  ffmpeg -i in.mov -f ffmetadata metadata.txt  

You can import metadata with something like ( have never tried this):

  ffmpeg -i in.mov -i metadata.txt -map_metadata 1 -c:a copy -id3v2_version 3 

Source: http://jonhall.info/how_to/create_id3_tags_using_ffmpeg

share|improve this answer
    
You would probably need to use -f ffmetadata -i metadata.txt –  evilsoup Jan 15 '13 at 16:01

Your Answer

 
discard

By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.